126773531 has 2 divisors, whose sum is σ = 126773532. Its totient is φ = 126773530.

The previous prime is 126773519. The next prime is 126773551. The reversal of 126773531 is 135377621.

It is a weak prime.

It is an emirp because it is prime and its reverse (135377621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126773531 - 2⁶ = 126773467 is a prime.

It is a super-3 number, since 3×126773531³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 126773491 and 126773500.

It is not a weakly prime, because it can be changed into another prime (126773551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63386765 + 63386766.

It is an arithmetic number, because the mean of its divisors is an integer number (63386766).

Almost surely, 2^126773531 is an apocalyptic number.

126773531 is a deficient number, since it is larger than the sum of its proper divisors (1).

126773531 is an equidigital number, since it uses as much as digits as its factorization.

126773531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26460, while the sum is 35.

The square root of 126773531 is about 11259.3752490980. The cubic root of 126773531 is about 502.3536116408.

The spelling of 126773531 in words is "one hundred twenty-six million, seven hundred seventy-three thousand, five hundred thirty-one".